Question
In: Math
Suppose these data show the number of gallons of gasoline sold by a gasoline distributor in...
Suppose these data show the number of gallons of gasoline sold by a gasoline distributor in Bennington, Vermont, over the past 12 weeks.
| Week | Sales (1,000s of gallons) |
|---|---|
| 1 | 17 |
| 2 | 22 |
| 3 | 20 |
| 4 | 24 |
| 5 | 19 |
| 6 | 17 |
| 7 | 21 |
| 8 | 18 |
| 9 | 23 |
| 10 | 21 |
| 11 | 16 |
| 12 | 22 |
(a)
Compute four-week and five-week moving averages for the time series.
| Week | Time Series Value |
4-Week Moving Average Forecast |
5-Week Moving Average Forecast |
|---|---|---|---|
| 1 | 17 | ||
| 2 | 22 | ||
| 3 | 20 | ||
| 4 | 24 | ||
| 5 | 19 | ||
| 6 | 17 | ||
| 7 | 21 | ||
| 8 | 18 | ||
| 9 | 23 | ||
| 10 | 21 | ||
| 11 | 16 | ||
| 12 | 22 |
(b)
Compute the MSE for the four-week moving average forecasts. (Round your answer to two decimal places.) __________
Compute the MSE for the five-week moving average forecasts. (Round your answer to two decimal places.) ____________
Solutions
milcah answered 3 months agoRelated Solutions
Suppose these data show the number of gallons of gasoline sold by a gasoline distributor in...
Suppose these data show the number of gallons of gasoline sold
by a gasoline distributor in Bennington, Vermont, over the past 12
weeks.
Week
Sales (1,000s
of gallons)
1
17
2
21
3
19
4
23
5
18
6
16
7
21
8
19
9
23
10
21
11
16
12
23
(a) Using a weight of 1/2 for the most recent
observation, 1/3 for the second most recent observation, and
1/6 for third most recent observation, compute a
three-week weighted moving...
These data show the number of gallons of gasoline sold by a gasoline distributor in Bennington,...
These data show the number of gallons of gasoline sold by a
gasoline distributor in Bennington, Vermont, over the past 12
weeks.
Week
Sales (1,000s
of gallons)
1
17
2
21
3
19
4
23
5
18
6
16
7
20
8
18
9
22
10
20
11
15
12
22
(a)
Compute four-week and five-week moving averages for the time
series.
Week
Time Series
Value
4-Week
Moving
Average
Forecast
5-Week
Moving
Average
Forecast
1
17
2
21
3
19...
Problem 1: The following table shows the number of gallons of gasoline sold by a gasoline...
Problem 1: The following table shows the number
of gallons of gasoline sold by a gasoline distributor in
Providence, Rhode Island, over the past 7 weeks. Forecast
sales using a 3-week weighted moving average where the weights are
3, 2, and 1.
Week
Sales (100s of Gallons)
1
17
2
21
3
19
4
23
5
18
6
16
7
20
Bob Nale would like to determine the mean number of gallons of gasoline sold to his...
Bob Nale would like to determine the mean number of gallons of
gasoline sold to his customers. Assume the number gallons of
gasoline sold is 2 gallons. From his records, he selects 64 samples
and finds the mean is 9 gallons. Find the 95% confidence interval
for the population mean.
Suppose that the number of gallons of milk sold per day at a local supermarket are...
Suppose that the number of gallons of milk sold per day at a
local supermarket are normally distributed with mean and standard
deviation of 419.9 and 26.93, respectively. What is the probability
that on a given day the supermarket will sell between 432 and 438
gallons of milk?
Question 2 options:
1)
We do not have enough information to
calculate the value.
2)
0.0036
3)
0.2508
4)
0.6734
5)
0.0758
Suppose that the mean and standard deviation of the scores...
Suppose that the average household in a state consumes 1000 gallons of gasoline per year. A...
Suppose that the average household in a state consumes 1000
gallons of gasoline per year. A 20-cent gasoline tax is introduced,
coupled with a $160 annual tax rebate per household. Will the
household be better or worse off under the new program? Graphically
show how you arrived at your answer
The data in the table show the number of pounds of bananas sold per week at...
The data in the table show the number of pounds of bananas sold
per week at a grocery store when the banana display was positioned
in the produce, milk, and cereal sections of the store.
a) Perform a one-way ANOVA using
alphaαequals=0.05
to determine if there is a difference in the average number of
pounds of bananas sold per week in these three locations.
b) If warranted, perform a multiple comparison test to determine
which pairs are different using
alphaαequals=0.050...
The average number of gallons of lemonade sold during a baseball game is 20, with a...
The average number of gallons of lemonade sold during a baseball
game is 20, with a standard deviation of 3 gallons. Assume the
amount of lemonade sold is normally distributed. When a game is
played, find the probability that the amount of lemonade sold
is:
A) If 10 games are played, find the probability that the mean
amount of lemonade sold is less than 19 gallons
3. The general manager of Gordon's Self-Service Gasoline wants to estimate the mean number of gallons...
3. The general manager of Gordon's Self-Service Gasoline wants
to estimate the mean number of gallons of gasoline that are
purchased by customers at his Kansas City locations. He would like
the estimate to be within plus or minus 0.50 gallons. Based on past
studies, the standard deviation of the amount purchased is 4.0
gallons. a. How large must the sample be for him to be 99%
confident about that estimate? b. How large must the sample be for
him...
An underground gasoline tank can hold 1.00x10^3 gallons of gasoline at 52.0 degrees F. If the...
An underground gasoline tank can hold 1.00x10^3 gallons of
gasoline at 52.0 degrees F. If the tank is being filled on a cool
morning when the outdoor temperature (and the gasoline in the
tanker truck) is 32.0 degrees F, how many gallons from the truck
can be poured in the tank? (b) Generally speaking, coefficients of
thermal expansion of metals are two magnitudes smaller than that of
gasoline's. If you would like to maximize the time or distance
between gas...
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